Results 71 to 80 of about 572,691 (264)

Manifestations in nature of self-controlled quasi-stationary nuclear fusion into magnetized low-temperature hydrogen plasma

Frontiers in Materials
This paper examines the characteristics of nuclear reactions occurring in low-temperature magnetized deuterium plasma. It is demonstrated that considering the ionization-recombination dynamics of deuterium atoms in this plasma allows for the potential ...
Vladimir Vysotskii, Mykhaylo Vysotskyy
doaj   +1 more source

Use of stable water isotopes to identify stages of the pingo ice core formation

Лëд и снег, 2018
Te isotopic characteristics of the pingo ice cores are considered. Te distribution of δ18O and δ2H values, dexc, δ18O–δ2H and δ2H–d exc relationships, and the simulation of the distribution of δ18O and δ2H values during the ice formation in a closed ...
Ju. N. Chizhova, Yu. K. Vasil’chuk
doaj   +1 more source

Use of stable water isotopes to identify water as a source for palsa ice core formation

Лëд и снег, 2020
Isotopic characteristics of ice cores of peat mounds (palsa) are considered. The distribution of the values of δ18O, δ2H, dexc and ratios δ18O–δ2H within the palza ice lense is associated with freezing in a closed or open system, and this allows finding ...
Yu. N. Chizhova, Yu. K. Vasil’chuk
doaj   +1 more source

Solvent‐Free Synthesis of Ultrabright Carbon Dots With Near‐Unity Quantum Yield for High‐Performance Light‐Emitting Diodes

Advanced Science, EarlyView.
A rational, solvent‐free synthesis utilizing 2,6‐diaminonaphthalene produces ultrabright green‐emissive carbon dots. Regulated by a self‐limiting oxidative capping mechanism, excitons undergo ultrafast intra‐particle funneling from the nitrogen‐doped carbon core to emissive surface traps.
Hyeonjin Park, Su Hwan Lee, Sejeong Seo, Soye Park, Soo min Ji, Hyunda Jo, Sehyeon Park, Young‐Hoon Kim, Woosung Kwon   +8 more
wiley   +1 more source

Machine Learning Potential for Calcium Silicate Hydrates With Broad Compositional and Structural Diversity

Advanced Science, EarlyView.
Existing machine learning potentials remain limited in their ability to generalize across the broad chemical and structural variability of C–S–H. Here, a representative DFT‐labeled dataset is constructed through large‐scale model generation, redundancy‐controlled screening, first‐principles optimization, and targeted sampling of non‐equilibrium ...
Yunjian Li, Cheng Chen, Roland J.‐M. Pellenq, Zongjin Li, Jiaping Liu   +4 more
wiley   +1 more source

Deuterium excess record from central Greenland over the last millennium: Hints of a North Atlantic signal during the Little Ice Age

, 2001
International audienceA stacked water isotope record for Summit, central Greenland, has been established covering approximately the last 900 years. Measurements of b•80 and bD in the GRIP deep ice core and the 230-m core, S93, allow the reconstruction of
Johnsen, Sigfus, Georg Hoffmann, Sigfus Johnsen, Hoffmann, Georg, Jean Jouzel, Jouzel, Jean   +5 more
core   +1 more source

Water Stable Isotopes and d-excess Compositions of Precipitation Dataset in Guyuan Station

, 2021
A field precipitation observation station (Guyuan Station) was set in Guyuan, China (36°00′16″N, 106°17′07″E) and 66 event-based precipitation samples from June 2018 to August 2020 were collected immediately after each precipitation event. Through indoor
Fen Zhang (11516779), Tianming Huang (11516776)   +1 more
core   +1 more source

Targeting Macrophage STING O‐GlcNAcylation via Small‐Molecule Allosteric Modulation for Psoriasis Therapy

Advanced Science, EarlyView.
Paeoniflorin allosterically targets the STING cyclic dinucleotide‐binding domain, stabilizes an inactive open conformation, and disrupts STING–OGT interaction to reduce Thr229 O‐GlcNAcylation and downstream signaling. This mechanism restrains myeloid STING activation, alleviates psoriasis‐like inflammation, and is supported by analyses of patient ...
Fang‐Fang Zhuo, Cheng‐Chen Hou, Wei Wang, Ya‐Xuan Zhu, Ling Li, Li‐Juan Liu, Chuan‐Jian Lu, Peng‐Fei Tu, Yang Liu, Rui‐Zhi Zhao, Ke‐Wu Zeng   +10 more
wiley   +1 more source

Stable isotopes, deuterium excess (d), and fractionation factors (FF) in dairy cow fluids in Farm BS.

, 2015
s.e.m. = standard error of the meanValues within a row without a common letter differ for P < 0.05.Values in the same column with asterisk differ for P < 0.05 (*), P < 0.01 (**) or P < 0.001 (***).Stable isotopes, deuterium excess (d), and fractionation ...
Maurizio Capelletti (742951), Agostino Tonon (742954), Federica Camin (700006), Fabio Abeni (742950), Aldo Dal Prà (742952), Luana Bontempo (742953), Francesca Petrera (674959)   +6 more
core   +1 more source

CeO2‐Based Electrocatalysts for the Oxygen Evolution Reaction: Design, Dynamic Mechanisms, and Electrolyte Adaptability

Advanced Science, EarlyView.
This Review shows how cerium oxide helps water‐splitting catalysts work better and last longer. It explains how CeO2 tunes electronic structure, oxygen‐vacancy behavior, and surface reconstruction, while adapting to alkaline, acidic, and seawater conditions.
Zhen Cui, Ailing Song, Zirui Cui, Manman Duanmu, Zhipeng Ma, Hao Liu, Guangjie Shao, Xinyi Tan, Guoxiu Wang, Hao Tian   +9 more
wiley   +1 more source